I'm not a coach, but went through the interview process recently and got an offer with MBB, and happen to have terrible "test" anxiety so hopefully my tips can help you in addition to what everyon has already said (same as you, not anxious at all in real life or at work, but as soon as somehting is an exam I get stressed out)!
First, change your mindset: your interviewer WANTS you to succeed, they think you may be fit for the job based on your resume and hope they're correct. They don't come at it from a place of trying to see you fail, they really hope that you succeed. Think of it more like a discussion, not a test. If you're completely stuck, it's okay to admit it, but keep your cool and redirect yourself to your framework when needed. And remember that there's often more than one way to solve a case, more than one right answer. For the math, I reccommend slowing down. It's normal that you won't be as fast during an interview as when you're alone. It's better to be slightly slower and get the right answer than to hurry and get it wrong. Time usually seems longer than it actually is for your interviewer.
Also, if you're smart enough to get an interview, you probably have more than one option for your next step in your career. Not everything depends on this one interview being successful, so take some pressure off. Whatever happens, happens. You can't control everything, you can only do your best.
Before the interview, sit in your interview chair, close your eyes, and take 10 very long deep breaths, in through the nose out through the mouth. Then turn on your computer and go for it :)
I'm not a coach, but went through the interview process recently and got an offer with MBB, and happen to have terrible "test" anxiety so hopefully my tips can help you in addition to what everyon has already said (same as you, not anxious at all in real life or at work, but as soon as somehting is an exam I get stressed out)!
First, change your mindset: your interviewer WANTS you to succeed, they think you may be fit for the job based on your resume and hope they're correct. They don't come at it from a place of trying to see you fail, they really hope that you succeed. Think of it more like a discussion, not a test. If you're completely stuck, it's okay to admit it, but keep your cool and redirect yourself to your framework when needed. And remember that there's often more than one way to solve a case, more than one right answer. For the math, I reccommend slowing down. It's normal that you won't be as fast during an interview as when you're alone. It's better to be slightly slower and get the right answer than to hurry and get it wrong. Time usually seems longer than it actually is for your interviewer.
Also, if you're smart enough to get an interview, you probably have more than one option for your next step in your career. Not everything depends on this one interview being successful, so take some pressure off. Whatever happens, happens. You can't control everything, you can only do your best.
Before the interview, sit in your interview chair, close your eyes, and take 10 very long deep breaths, in through the nose out through the mouth. Then turn on your computer and go for it :)